Not again! Bike drive cranks

Actually it would be fun to collect this kind of stuff.

There were the twist grip brakes for instance, the flex stem, I beam, Browning, ect. I know some of it actually worked but like the Shimano air shifters just not practical.
 
Lid":25g64k07 said:
Actually it would be fun to collect this kind of stuff.

I've thought about that before. Because it isn't that popular it'll end up being super rare in 15 years or so.
 
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